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Publication numberUS483342 A
Publication typeGrant
Publication dateSep 27, 1892
Filing dateJun 24, 1892
Publication numberUS 483342 A, US 483342A, US-A-483342, US483342 A, US483342A
InventorsPrank H. Bolte
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
bolte
US 483342 A
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Description  (OCR text may contain errors)

(No Model.)

F. H. BOLTE.

CRANK SECURING MEANS.

No. 483,342. Patented Sept. 27, 1892.

W iineases,

In z/enior,

UNITED STATES PATENT OFFICE.

FRANK H. BOLTE, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO THE SERCOMBE- BOLTE MANUFACTURING COMPANY, OF SAME PLACE.-

CRANK-SECURING MEANS.

SPECIFICATION forming part of Letters Patent No. 483,342, dated September 27, 1892.

Application filed June 24, 1892- Serial No. 437,849. (No model.)

To all whom it may concern.-

l e it known that I, FRANK II. BOLTE, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee, and

in the State of Wisconsin, have invented certain new and useful Improvements in Cranks; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention has for its object to provide to detachable cranks that may be rigidly secured to their axes without the employment of any description of key or cotter, whereby I avoid the necessity of providing seats or openings for such devices, increase the strength of the r 5 cranks, and prevent them from working loose.

My invention therefore consists in certain peculiarities of construction and combination of parts hereinafter described with reference to the accompanying drawings and subsequently claimed.

In the drawings, Figure 1 represents a side elevation of a complete crank constructed according to my invention, and Fig. 2 a similar view of the same fitted to an axis and having its peculiar clamping-nut in section.

Referring by letter to the drawings, A represents a crank having its head B or that portion that is fitted to an axis 0 provided with a tapered and screw-threaded lug D, that may be at any point on the periphery of said head. The lug D and head B are split inward as far as the opening in which the axis 0 is fitted, and in practice this fit should be as accurate as possible in order to obtain the best results.

5 The axis-opening in the crank may be of any preferred contour; but it is best to have it somewhat angular to prevent any possible slipping of said crank when under strain.

Engaging the tapered screw-threaded lug D is a nut E, having a corresponding taper and thread upon its interior, and the dimensions of said lug and nut are such that the latter may be forcibly run onto the former far enough to exert a clamping action that tends to reduce the area of the opening in the split crank head B, whereby this head is bound tight on an axis previously engaged therewith.

By the construction above described I avoid weakening a crank by having key-seats or cot- 5o ter-openings therein and prevent the stretching that is incident to cranks held in place by keys or cotters of any description.

Having now described my invention, what I claim as new, and desire'to secure by Letters 5 5 Patent, is

1. A crank having a split head provided with a split and screw-threaded peripheral lug and a clamping-nut that engages the lug, substantially as set forth.

2. A crank having a split head provided with a split, tapered, and screw-threaded peripheral lug and a nut that is tapered and threaded upon its interior to engage with the lug, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.

FRANK H. BOLTE.

\Vitnesses:

N. E. OLIPHANT, JOHN E. WILEs.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2678228 *Jun 8, 1951May 11, 1954Bausch & LombDiagnostic instrument with magnetic connector
US3895878 *Feb 29, 1972Jul 22, 1975NadellaCoupling element having a split hub
US5466237 *Nov 19, 1993Nov 14, 1995Cross Medical Products, Inc.Variable locking stabilizer anchor seat and screw
US5474555 *Aug 3, 1994Dec 12, 1995Cross Medical ProductsSpinal implant system
US5496321 *Dec 12, 1994Mar 5, 1996Cross Medical Products, Inc.Rod anchor seat having a sliding interlocking rod connector
US5624442 *Oct 5, 1995Apr 29, 1997Cross Medical Products, Inc.Transverse link for use with a spinal implant system
US6432108Jan 24, 2000Aug 13, 2002Depuy Orthopaedics, Inc.Transverse connector
US6761721Jul 18, 2002Jul 13, 2004Depuy Acromed, Inc.Transverse connector
US7066938Sep 9, 2002Jun 27, 2006Depuy Spine, Inc.Snap-on spinal rod connector
US7604655Jan 6, 2006Oct 20, 2009X-Spine Systems, Inc.Bone fixation system and method for using the same
US7645294Mar 31, 2004Jan 12, 2010Depuy Spine, Inc.Head-to-head connector spinal fixation system
US7662172Oct 25, 2005Feb 16, 2010X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US7686835Oct 4, 2006Mar 30, 2010X-Spine Systems, Inc.Pedicle screw system with provisional locking aspects
US7717938Aug 27, 2004May 18, 2010Depuy Spine, Inc.Dual rod cross connectors and inserter tools
US7717939Sep 28, 2005May 18, 2010Depuy Spine, Inc.Rod attachment for head to head cross connector
US7717943Jul 29, 2005May 18, 2010X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US8012185Dec 4, 2007Sep 6, 2011X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8016866Feb 22, 2010Sep 13, 2011X-Spine Systems, Inc.Pedicle screw system with provisional locking aspects
US8029539Dec 19, 2007Oct 4, 2011X-Spine Systems, Inc.Offset multiaxial or polyaxial screw, system and assembly
US8066745Apr 26, 2010Nov 29, 2011X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US8092504Nov 19, 2007Jan 10, 2012X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8097025Mar 27, 2008Jan 17, 2012X-Spine Systems, Inc.Pedicle screw system configured to receive a straight or curved rod
US8142481Jan 21, 2010Mar 27, 2012X-Spine Systems, Inc.Pedicle screw systems and methods of assembling/installing the same
US8147522Sep 17, 2009Apr 3, 2012X-Spine Systems, Inc.Bone fixation method
US8361117Nov 8, 2006Jan 29, 2013Depuy Spine, Inc.Spinal cross connectors
US8372119Oct 9, 2008Feb 12, 2013Depuy Spine, Inc.Dual rod cross connectors and inserter tools
US8382806Nov 7, 2011Feb 26, 2013X-Spine Systems, Inc.Capless multiaxial screw and spinal fixation assembly and method
US8480714Aug 22, 2011Jul 9, 2013X-Spine Systems, Inc.Offset multiaxial or polyaxial screw, system and assembly
US8556937May 14, 2012Oct 15, 2013DePuy Synthes Products, LLCRod attachment for head to head cross connector
US8591550Jan 3, 2012Nov 26, 2013Depuy Spine, Inc.Rod attachement for head to head connector
Classifications
Cooperative ClassificationF16B2/065